Canonical page: https://sequoia-research.com/writing/largest-dst-sponsors-sponsor-concentration-calculator
Author: Sequoia Research
Published: 2026-10-18T07:45:10.196Z
Updated: 2026-10-18T07:45:10.196Z
Interactive tool: https://sequoia-research.com/writing/largest-dst-sponsors-sponsor-concentration-calculator#research-tool

# Largest DST Sponsors: Sponsor Concentration Calculator

## What Is This Article About?

This guide explains a calculator that groups your entered Delaware statutory trust (DST) holdings by trust and sponsor relationship. You supply the equity amounts, source references, and group definitions; the tool does not research or verify those facts. It keeps unresolved relationships in view and withholds percentages when the dollar base is incomplete. The result is a dated view of the portfolio you entered, not a sponsor ranking or a recommendation to buy, sell, or rebalance.

## Table of Contents

- [What Sponsor Concentration Can Tell You](#what-sponsor-concentration-can-tell-you)
- [Set the Portfolio Scope and Equity Basis](#set-the-portfolio-scope-and-equity-basis)
- [Define Sponsor Groups From Your Sources](#define-sponsor-groups-from-your-sources)
- [Enter Each DST Holding Once](#enter-each-dst-holding-once)
- [Read the Trust and Sponsor Calculations](#read-the-trust-and-sponsor-calculations)
- [Keep Unknown Amounts and Relationships Separate](#keep-unknown-amounts-and-relationships-separate)
- [Revise Records Without Losing the Earlier View](#revise-records-without-losing-the-earlier-view)
- [Use the Results in a Broader Portfolio Review](#use-the-results-in-a-broader-portfolio-review)
- [Save Your Work and Understand the Limits](#save-your-work-and-understand-the-limits)
- [FAQ](#faq)

## What Sponsor Concentration Can Tell You

A list of several trust names can conceal a shared management relationship. Counting names alone does not show how much of your entered money depends on that relationship. This calculator adds the equity amounts for trusts you place in the same group. It also shows each trust on its own, so the group total can be traced back to its parts.

The Financial Industry Regulatory Authority (FINRA) explains that concentration can arise from related assets and from illiquid holdings. Different investment names do not by themselves remove overlap. Its June 2022 investor guidance also notes that private placements can be hard to sell quickly. That is context for asking broader questions, not a formula that sets a safe sponsor percentage. [FINRA concentration guidance](https://www.finra.org/investors/insights/concentration-risk)

A sponsor group is only one way to examine dependence. Two unrelated sponsors may own properties in the same market or rely on the same tenant. One sponsor may manage trusts with quite different properties. This tool does not measure those economic links. A lower sponsor share is not proof of lower overall risk.

The phrase largest DST sponsors concerns a firm's scale across its business. Your own largest group is a different question: which group accounts for the most money in your entered set? This tool addresses that portfolio question without importing a marketwide size ranking or assuming that a larger firm is better.

## Set the Portfolio Scope and Equity Basis

Start with a portfolio label, an inclusion rule, a cutoff date, and the expected number of distinct trusts. For example, a household might include four named DSTs across two accounts and exclude direct rental property. State those exclusions. The output describes that selected set; it does not become a complete household balance sheet just because the label contains the household's name.

The money basis is fixed: original contributed equity in United States dollars. Do not add allocated debt, current valuation marks, or property purchase prices. Do not subtract distributions from the contribution amount. Those changes would create different measures. The calculator does not estimate current value, tax basis, investment return, or money that can be withdrawn.

Combine all accounts included in your scope for the same trust before entering its row. If one account contributed $60,000 and another contributed $40,000 to the same trust, the scoped trust amount is $100,000. Entering that combined amount and the two account amounts again would count the same money twice. Keep a safe reference to the supporting reconciliation.

The declared count is a useful check. If you declare four trusts but save only three included rows, the tool shows the known dollar subtotal and withholds all percentages. Matching four rows does not prove you found every holding. It simply prevents a visibly incomplete count from producing a finished-looking percentage table.

The scope becomes fixed after the first group or trust is saved. A different cutoff, inclusion rule, or expected count needs a new board. Export the old one first. That avoids silently comparing records built for different portfolios under the same heading.

## Define Sponsor Groups From Your Sources

Create each group once. Give it a clear label, a relationship definition, a source reference, an as-of date, and the date you read that source. The group receives a stable ID such as G1. Later, choose that saved ID for a trust rather than typing a slightly different group name into every row.

A useful definition states why entities belong together. It might describe a particular common sponsor-management structure shown in a named source. It should not rely only on similar logos, shared words, or a sales representative's contact list. State the evidence and its limits so another reader can understand your choice.

FINRA's May 2023 private-placement notice discusses reasonable investigation of the issuer, management, material affiliates, and certain related-party transactions. Its duties apply to covered firms and recommendations. It does not certify the group labels used here. A manually completed map does not replace that investigation or establish that a professional has met a regulatory duty. [FINRA Notice 23-08](https://www.finra.org/rules-guidance/notices/23-08)

Group definitions are fixed once saved. The tool will not rename a group while leaving old trust links attached to a new meaning. If the definition is wrong or changes, preserve the export and start a new board. An unused group may remain listed with no assigned trusts; it is not evidence that the sponsor has no business elsewhere.

Each included trust can count toward only one group in this view. If you want to study overlapping connections, use separate boards with clear definitions. Do not assign the same invested amount to two groups and then add those groups as if they were separate pieces of one total.

## Enter Each DST Holding Once

Use the exact trust name and a helpful identifier. Add a reference that explains which accounts or positions the row includes. Both identity fields become fixed after the first save. The tool rejects a repeated label after ignoring letter case and extra spaces, but it cannot recognize every alias or spelling change. You still need to check for duplicate economic holdings.

Enter the original contributed equity amount without a dollar sign or commas. Use no more than two decimal places. Zero is allowed when it is the supported amount for your stated record. Leave the field blank when the amount is unknown. A blank is not converted to zero.

A known amount needs its source reference, as-of date, read date, and your check that it is complete for the trust and fits the fixed basis. The tool checks the fields and date order. It cannot read the source or tell whether you checked it correctly. An older source may be accurate but incomplete for the cutoff if later contributions occurred.

Choose a candidate group only when you have a reason to do so. To count the trust in that group, add the trust-to-group source, its dates, and check the relationship against the saved group definition. Selecting G1 alone does not count as support. An unchecked candidate stays unresolved, with the candidate and notes preserved for follow-up.

Use the version entry date and note to explain what you saved. Known source dates must follow a sensible order: as-of date, then read date, then entry date, then cutoff. Equal dates are allowed. The cutoff cannot be later than the current UTC date. These checks catch impossible ordering; they do not prove the information was current.

## Read the Trust and Sponsor Calculations

The fictional example contains four trusts and two group definitions. It has no real sponsor data. All amounts use the same contribution basis, and the declared count matches the four included trust rows.

| Fictional Trust | Contributed Equity | User-Checked Group | Share of Entered Portfolio |
| --- | ---: | --- | ---: |
| Cedar DST | $200,000 | Alder Group | 40.00% |
| Bay DST | $150,000 | Alder Group | 30.00% |
| Hill DST | $100,000 | Birch Group | 20.00% |
| Park DST | $50,000 | Unresolved | 10.00% |

The entered total is $500,000. Alder's supported assignments total $350,000, so its displayed share is $350,000 divided by $500,000, or 70%. Birch's assigned amount is $100,000, or 20%. The remaining $50,000 is unresolved, or 10%. The unresolved row is not a third sponsor group.

All shares use the same full portfolio denominator. Dividing Alder's $350,000 only by the $450,000 assigned to known groups would give 77.78%. That answers a narrower question about the assigned portion. It would overstate Alder's share of this full entered portfolio. This tool keeps the unresolved amount in the denominator.

Calculations use whole cents. Percentages are rounded to two decimal places for display. Three equal one-dollar holdings would each show 33.33%, which adds to 99.99% after rounding. That small display difference is not missing money. Use the exact saved cent amounts when checking whether totals reconcile.

Group rows stay in creation order, not quality order. The output does not award grades or label any share acceptable. It gives you the amounts and their source trail, leaving the investment judgment to a broader review.

## Keep Unknown Amounts and Relationships Separate

An unknown amount and an unresolved relationship create different gaps. In the example, Park's $50,000 is known even though its group is not. Total equity can still be calculated, and Park remains part of that total. The relationship needs research; its money does not disappear.

Now suppose Park's amount is also unknown. The known subtotal becomes $450,000, and every percentage is withheld. The tool does not assume the missing amount is zero or estimate it from another holding. Even Alder's known $350,000 cannot be expressed as a share of a complete total that has not been established.

The group table shows known subtotals and counts of unknown amounts. If a trust has a supported group link but no amount, its group contains that trust and carries an unknown-amount flag. A zero subtotal in that situation does not mean the group exposure is zero. Read the flags with the dollars.

The Securities and Exchange Commission's (SEC) private-placement bulletin explains that investors may receive less disclosure than in registered offerings and may face illiquidity. Its September 2026 update supports care with gaps in evidence. It does not mean every missing source is misconduct or every unresolved relationship is harmless. This calculator leaves that question open. [SEC private-placement bulletin](https://www.investor.gov/introduction-investing/general-resources/news-alerts/alerts-bulletins/investor-bulletins/private-placements-under-regulation-d-updated-investor-bulletin)

If all entered amounts are known zeros, the dollar total is zero and percentages remain blank. There is no meaningful share calculation with a zero denominator. That is different from a known zero holding within an otherwise positive portfolio, where its share can correctly be 0.00%.

## Revise Records Without Losing the Earlier View

Choose Revise beside a saved trust to append a new version. The original identity stays fixed. Amounts, evidence, relationship choices, notes, and portfolio treatment can change. Enter a reason and repeat the source checks. Copied fields are starting material, not proof that a new review was completed.

Suppose new evidence places Park in Alder Group. With the original amounts unchanged, Alder's assigned amount becomes $400,000, or 80%. Birch remains at 20%, and unresolved equity becomes zero. This changes the relationship map; it does not mean the household bought another $50,000 investment. Earlier versions remain in the export.

If a trust row does not belong in the stated scope, save an archived version with a reason. It stops contributing to the current totals, but its identity and history remain. Archiving one of four declared trusts leaves only three included rows, so percentages are withheld. Restore the row or add the correct distinct identity if that matches the original scope.

An unsaved change blocks calculation and downloads. Save or cancel it first. Changing an amount source clears its check; changing a relationship source or candidate group clears that check. This prevents a prior checkbox from silently approving edited evidence. It does not prevent a person from making an unsupported new check.

## Use the Results in a Broader Portfolio Review

Begin with the largest dollar dependencies you can actually support. Ask what decisions, people, service providers, or operating systems those holdings share. Keep each answer tied to its source. A common group may matter in several ways, but the percentage alone does not tell you the likely size of a loss.

Then examine what this view leaves out. A household may have common tenants, cities, debt maturities, or property types across different groups. It may also have other assets outside this board. The sponsor calculation should prompt those reviews, not replace them with a single diversification label.

Use unresolved rows as a research list. Identify the missing document or unclear relationship and who can answer the question. Do not spread those amounts evenly among known groups. That would create links that the record does not support and make a precise-looking table less reliable.

## Save Your Work and Understand the Limits

Download full JSON or text after calculating the saved board. Both formats include the scope, fixed group definitions, current rows, archived rows, prior trust versions, calculations, and limitations. Display filters do not narrow the export. In an embedded page, a separate Save file button may complete the download.

The tool supports up to 30 included trusts, 40 trust identities with archives, 20 groups, and 120 trust versions. Each amount is capped at $999,999,999.99. Text fields enforce length limits; saved data are capped at 180,000 UTF-8 bytes and each export at 450,000 bytes. These bounds keep this a small research tool.

Entries stay only in the open page. There is no automatic storage, import, account connection, document reading, or reminder service. A refresh can clear the work. Confirmed Start new board or Load fictional example replaces it. Use non-sensitive labels and source locators, and save a useful copy before leaving.

## FAQ

### Does the Calculator Verify Sponsor Affiliations?

No. You define groups and check each trust link against your sources. The tool validates fields and dates, then uses those manual choices. It does not search corporate records, read documents, or decide legal control. Keep a disputed link unresolved until you have adequate evidence.

### Should I Enter Allocated Debt With My Equity?

No. This board uses original contributed equity only. Adding debt would mix different measures and change the denominator. Use a separate clearly defined analysis for debt exposure or property value. The result here is not an investor loan-to-value calculation.

### Why Are All Percentages Missing?

The included trust count may not match the declared count, an amount may be unknown, or the total may be zero. The output states the reason. Known subtotals remain visible, but they are not substituted for a complete positive portfolio denominator.

### Can an Unresolved Trust Still Have a Percentage?

Yes, when all amounts are known and the declared count matches. Its equity remains part of the portfolio even if the group is unresolved. The separate unresolved total is a research gap, not a claim that those trusts form an independent sponsor group.

### Does an 80% Group Share Mean the Investment Is Unsuitable?

The tool does not make that judgment. The figure describes entered contributions under your chosen scope and group definition. Suitability, concentration risk, liquidity needs, and possible remedies require more facts. There is no universal pass or fail threshold in this calculator.

### Can I Change a Saved Group Definition?

Start a new board after exporting the old one. Group definitions are fixed so a change in meaning cannot silently carry forward earlier trust links. Trust evidence can be revised within the existing scope, with earlier versions retained and fresh checks required.

### Does a Download Include Rows Hidden by a Filter?

Yes. Both downloads preserve all saved groups, trusts, versions, archives, and current calculations. The screen filter only helps you inspect a subset. It does not turn a filtered display into a different portfolio or a shorter evidence record.

## About Sequoia Research

Sequoia Research, LLC provides independent research on DSTs and other real estate investment offerings. This library explains how to read source records, check calculations, and organize investment research questions.

## Sources

- [FINRA concentration guidance](https://www.finra.org/investors/insights/concentration-risk). June 15, 2022; related assets and illiquidity context. Read October 18, 2026.
- [FINRA Notice 23-08](https://www.finra.org/rules-guidance/notices/23-08). May 9, 2023; covered-firm private-placement investigation scope. Read October 18, 2026.
- [SEC private-placement bulletin](https://www.investor.gov/introduction-investing/general-resources/news-alerts/alerts-bulletins/investor-bulletins/private-placements-under-regulation-d-updated-investor-bulletin). August 17, 2022; updated September 21, 2026. Read October 18, 2026.